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The exhaust flows are low due to a couple of ridges and I'll post the revised flows later.

boy, with those numbers your the new bench racing champ

07-28-2009 03:51 PM

dfree383

Re: A460 BBF Head Flow

In its current trim at 12.2:1 and 528" is making about 905 and 725ft/lb. The heads are a little on the large side for the current build. I had the heads CNC'd and it opend the chambers up a bit and lowered my compression for the intentions of upgrading later.

I intend to open it up to a 572" and put some compression to it, Should go up to about 1025-1050 with a single 4.

How big was your BBC? Sounds like a nice build.

Dave

07-28-2009 02:50 PM

BIGJOE

Re: A460 BBF Head Flow

With less CFM head flow than you showed here, I had a BB Chevy make 1070 HP with one carb, and 1225 with two carbs, What are you shooting for with your engine ??

Nothing wrong with a hot FE Motor, they just have thier LImits and can be expensive to get into.

That is a great deal on those SCJ's.......They will do 370-380cfm with a modest amount of blending And bowl work. 650HP is easy and a 557 is the same price as a 501....LOL Use the Force Paul !!!

Well I think I'm going to stay with the rebel forces. I'd like to get Jim Kuntz to port some Edelbrock Pro Port FE heads for me. Then I'd bump my compression to 11:1 or so, put in a 255-260'ish solid roller, and a ported Victor intake. I think I'd have 650 hp or so. The tradeoff vs. the 460 will be rpm and cost. I'll probably change my mind again next week.

i have a 74 460 out of an ambulance and it has close chamber heads with a 2.05 int not shor the exaust factory flat top motor does any one no any specs for these motors i don't have numbes onhand it also had a spread bore intake factory which i thought was wierd

i have a 74 460 out of an ambulance and it has close chamber heads with a 2.05 int not shor the exaust factory flat top motor does any one no any specs for these motors i don't have numbes onhand it also had a spread bore intake factory which i thought was wierd

Posted Just to keep you Small Block Guys inline when you think 325cfm is big numbers.... Keep in mind the above numbers are Good but not Max for the A460 Head Family and their are alot bigger heads avaliable for BBF's.

Thanks a lot you big jerk! How do you think that makes me feel about my FE heads??? Your exhaust flows more than my intake. What about MY feelings?